necking down after collecter?

70DusterBob said
I got the Summit pre fab exhaust system they sell. They just need to weld it up. The TTI headers came with the 2" extensions/collectors. The header exits 3" but the extension it came with goes down to three. I think that is where he got confused. They do pretty good work otherwise. I guess he was cornfused. lol? I guess I should have Flanagan look at it after it's all said and done see if he can improve it a bit.
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The TTI headers should have 3" to 2.5" or 3" to 3" collectors. The Summit kit is probably 2.5". It's mandrel bent. So despite being disappointed it's not our Pypes kit you chose, you did ok performance wise. You should be good as long as the shop doesn't mess with the existing bends.